minor change

Author: Jicheng Lu

tests/BotSharp.Test.RealtimeVoice/Audio/AudioOut.cs

@@ -12,7 +12,7 @@ internal class AudioOut : IDisposable
     private readonly BufferedWaveProvider _waveProvider;
     private readonly WaveOutEvent _waveOutEvent;
 
-    public AudioOut()
+    private AudioOut()
     {
         var audioFormat = new WaveFormat(
             rate: SAMPLE_RATE,
@@ -33,6 +33,8 @@ public AudioOut()
         _waveOutEvent.Play();
     }
 
+    public static AudioOut Init() => new();
+
     public void Enqueue(BinaryData data)
     {
         var buffer = data?.ToArray() ?? [];

tests/BotSharp.Test.RealtimeVoice/Session/ConsoleChatSession.CustomStream.cs

@@ -14,7 +14,7 @@ private async Task StartCustomStreamAsync(string agentId)
         DisplayRemarks();
 
         var (hub, conversationId) = await Setup(agentId);
-        var audioOut = new AudioOut();
+        var audioOut = AudioOut.Init();
 
         await hub.ConnectToModel(
             responseToUser: async data =>